121211112022 has 64 divisors (see below), whose sum is σ = 252535449600. Its totient is φ = 42089201280.

The previous prime is 121211112013. The next prime is 121211112041. The reversal of 121211112022 is 220211112121.

It is a junction number, because it is equal to n+sod(n) for n = 121211111987 and 121211112005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 985822 + ... + 1101937.

It is an arithmetic number, because the mean of its divisors is an integer number (3945866400).

Almost surely, 2^121211112022 is an apocalyptic number.

121211112022 is an abundant number, since it is smaller than the sum of its proper divisors (131324337578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121211112022 is a wasteful number, since it uses less digits than its factorization.

121211112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087821.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121211112022 its reverse (220211112121), we get a palindrome (341422224143).

Subtracting 121211112022 from its reverse (220211112121), we obtain a palindrome (99000000099).

The spelling of 121211112022 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred twelve thousand, twenty-two".